Wing heater for airplanes



Feb. 3, 1931.

L. V, STOWE WING HEATER FOR AIRPLANES Filed July 30. 1928 Z Sheets-Sheet 1 z aierflaiowe myaw ATTORNEY Feb. 3, 1931. v. STOWE I 1,791,331

I I WING HEATER FOR AIRPLANES Filed July 30, 1928 2 Sheets-Sheet 2 INVENTOR ATTORNEY Patented Feb. .3, 19,31.

UNITED STA TES PAETENT OFFICE LESTER V. STOWE, Q1 JUNC'I'IQN CITY, CALIFORNIA wme mama iron Autumn's" i a 7 Application filed July 30,1928. Serial Zll'o. 296,119.

This invention relatesto'exhaust heaters and its general object is to provide a heating apparatus designed to prevent the accumulation of ice and snow on the wings of air planes and like crafts.

A further object of theinvention is to I provide an exhaust heater for an aircraft,

' tion.

be hereinafter. fully described, illustrated in I the accompanying drawings and specifically pointed out in the appended claims.

In describing my invention in detail, reference will be had to the accompanymg drawings wherein like characters denote l1ke or correspondingparts throughout the several views, and in which: y a

' Figure 1 is a fragmentary top plan view of an airplane showin parts broken away and illustrating the apphcation of the heater forming the subject matter of the present inven- Figure 2 is a sectional view taken a proxi mately on line 22 of Figure 1, loo 'ng in the direction of the arrows.

I Figure 3 is a sectional view illustrating the application of the valve for controllin the passage of exhaust gases to the radlator pipes for the wings.

Figure 4 is a similar view taken through the cockpit of the airplane shown and illustrating the application of the valve controlling lever.

Referring to the drawings in detail, the letter A indicates'an airplane of the usual construction and which includes hollow wings B as best shown in'Figure 2 ofthe drawin s. I The fiatter'C indicates the' exhaust Juanifolds of the airplane engine and these manifolds have in communication therewith adja-' cent their juncture with the exhaust pipes, conduits 1 which extend rearwardly from the exhaust manifolds and are arranged in communication with vertical conduits 2 intermediate their ends, as best shown in Figure 2.

Suitably secured between the coverings of the wings B and substantially following the outline of said wings are radiator pipes 3 of substantially U-shape' formation as best shown in Figure 1; These radiator pipes have their forward inner ends connected in .communication with the vertical conduits at the upper and lower ends thereof, while the rear ends of the radiatorpipes terminate in hausting the gases to the atmosphere.

Arranged in the rearward conduits 1 adjacent their juncture with the exhaust manifolds C is a butterfly valve 4 for controlling the passage of exhaust ases through the conduits and these butter y valves are provided with stems 5 havin secured .to the outerends thereof arms 6 or 0 rating the valves in a manner which will b: apparent.

substantially right angle bent ends for ex-- presently v The arms 6 terminate in eyes 7 which have. secured therein one of the ends of coil springs 8 while the opposite ends of said springs are fixed in any appropriate manner to the fuseg lage of an alrplane as suggested in Figure 2.

The coil springs 'normally retain thevalves, 4 in closed position. Secured in the cockvpit of the airplane through the medium of rivets or other like securin means is a plate 9 having formed therewit and depending therefrom a bracket which includes teeth 10 and a rearwardly extending projection 11 having an upturned end for cooperating with the bracket for supporting a lever 12 which is mounted for slidabl 'ei movement through thebracket as suggested in Figure 4.

' The lever 12 has one of its ends curved upon itself to provide a handle13 while its opposite end terminates in an eye 14 for the purpose of securely receiving one of the ends of converging cables 15 while the opposite of the armed.

. ends of said cables are secured in the eyes 7 

